Agronomic characteristics of five different urban waste digestates.
作者： Elina Tampio , Tapio Salo , Jukka Rintala
DOI: 10.1016/J.JENVMAN.2016.01.001
关键词: Biogas 、 Anaerobic digestion 、 Food waste 、 Digestate 、 Municipal solid waste 、 Environmental science 、 Fertilizer 、 Organic matter 、 Waste management 、 Waste treatment
摘要: The use of digestate in agriculture is an efficient way to recycle materials and decrease the mineral fertilizers. agronomic characteristics digestates can promote plant growth soil properties after fertilization but also harmful effects arise due quality, e.g. pH, organic matter heavy metal content. objective this study was evaluate differences similarities value five urban waste from different biogas plants treating either food waste, fraction solid or a mixture waste-activated sludge vegetable waste. were studied with chemical analyses availability nutrients assessed experiments mineralization tests. All produced 5-30% higher ryegrass yields compared control fertilizer similar inorganic nitrogen concentration, while feedstock source affected value. Food municipal characterized by high low load. Waste-activated as part mixture, however, increased content reduced plant, thus reducing digestate.
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